Alternator Belt for Yanmar Marine 2GM20F, 3GM30F, Replaces 25132-003700
Alternator Belt for Fresh Water Cooled Models (Closed Cooling) 2GM20F, 3GM30F Used on Engines with Heat Exhangers Replaces Yanmar Marine 25132-003700, 123325-77360, 145613-77350, 123325-77440 RM25132-003700.